Home / 1,170,889.92-1,615,807-661,581.36

Finding the Fourth Proportional to 1,170,889.92, 1,615,807 and 661,581.36

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Solution

The fourth proportional to 1,170,889.92, 1,615,807 and 661,581.36 is: 912,970.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,889.92 : 1,615,807 = 661,581.36 : x
  2. Step 2: Convert to fraction form
    1,170,889.92/1,615,807 = 661,581.36/x
  3. Step 3: Cross multiply
    1,170,889.92x = 1,615,807 × 661,581.36
  4. Step 4: Simplify right side
    1,170,889.92x = 1,068,987,792,557.52
  5. Step 5: Solve for x
    x = 1,068,987,792,557.52/1,170,889.92
  6. Step 6: Final answer
    x = 912,970.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.